blob: 62c88cffe12cc5228979064c5211302df265b034 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
/**
* This code is mostly from the old Etherpad. Please help us to comment this code.
* This helps other people to understand this code better and helps them to improve it.
* TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
*/
/**
* Copyright 2009 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS-IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
var padcookie = (function()
{
var cookieName = isHttpsScheme() ? "prefs" : "prefsHttp";
function getRawCookie()
{
// returns null if can't get cookie text
if (!document.cookie)
{
return null;
}
// look for (start of string OR semicolon) followed by whitespace followed by prefs=(something);
var regexResult = document.cookie.match(new RegExp("(?:^|;)\\s*" + cookieName + "=([^;]*)(?:;|$)"));
if ((!regexResult) || (!regexResult[1]))
{
return null;
}
return regexResult[1];
}
function setRawCookie(safeText)
{
var expiresDate = new Date();
expiresDate.setFullYear(3000);
var secure = isHttpsScheme() ? ";secure" : "";
document.cookie = (cookieName + "=" + safeText + ";expires=" + expiresDate.toGMTString() + secure);
}
function parseCookie(text)
{
// returns null if can't parse cookie.
try
{
var cookieData = JSON.parse(unescape(text));
return cookieData;
}
catch (e)
{
return null;
}
}
function stringifyCookie(data)
{
return escape(JSON.stringify(data));
}
function saveCookie()
{
if (!inited)
{
return;
}
setRawCookie(stringifyCookie(cookieData));
if ((!getRawCookie()) && (!alreadyWarnedAboutNoCookies))
{
alert("Warning: it appears that your browser does not have cookies enabled." + " EtherPad uses cookies to keep track of unique users for the purpose" + " of putting a quota on the number of active users. Using EtherPad without " + " cookies may fill up your server's user quota faster than expected.");
alreadyWarnedAboutNoCookies = true;
}
}
function isHttpsScheme() {
return window.location.protocol == "https:";
}
var wasNoCookie = true;
var cookieData = {};
var alreadyWarnedAboutNoCookies = false;
var inited = false;
var pad = undefined;
var self = {
init: function(prefsToSet, _pad)
{
pad = _pad;
var rawCookie = getRawCookie();
if (rawCookie)
{
var cookieObj = parseCookie(rawCookie);
if (cookieObj)
{
wasNoCookie = false; // there was a cookie
delete cookieObj.userId;
delete cookieObj.name;
delete cookieObj.colorId;
cookieData = cookieObj;
}
}
for (var k in prefsToSet)
{
cookieData[k] = prefsToSet[k];
}
inited = true;
saveCookie();
},
wasNoCookie: function()
{
return wasNoCookie;
},
isCookiesEnabled: function() {
return !!getRawCookie();
},
getPref: function(prefName)
{
return cookieData[prefName];
},
setPref: function(prefName, value)
{
cookieData[prefName] = value;
saveCookie();
}
};
return self;
}());
exports.padcookie = padcookie;
|
